Improvement in lamp-extinguishers



F. H. wamss.

LAMP-EXTINGUISHE'RS. V No.177,631- Patented May 23,1876.

- 'Water1oo, in the county of Seneca and State operation ofthe same, reference being had to similar to Fig. 1, but showin rod, attached at the upper end to the bulb,

vthat it can be readily UNITED STA- ns .FRED. H. FURNISS, on ArnR oo, NEW YORK;

IMPROVEMENT IN LAMP-EXTINGUISHERS.

Specification forming part of Letters Patent No. 177,631, dated May 23, 1876; application filed To all whom it may concern Be it known that I, FRED. H. FURNIss, of

of New York, have invented a certain new and useful Improvement in Lamps; and I do hereby declare that the following is a full, clear, and exact description of the construction and the accompanying drawings, in 'which Figure 1 is a central vertical section of a lamp-burner provided with my improvement. Fig. 2 is a perspective view. Fig. 3 is a View g the extinguisher closed upon the wick-tube. Fig. 4 is a View at right angles to Fig. 3.

My improvement relates to devices for extinguishing the flame of a lamp, and is of that kind known as automatic or self-acting. It is an improvement upon my patent of March 21, 1876. V

The invention consists in the combination of the extinguishing-cap with a movable wick tube, which slides up and down in an exterior fixed tube, whereby the wick is first depressed, and the cap then brought down over the end of the fixed tube; also of other parts, as hereinafter more fully described.v 1

A is an ordinary lamp-burner. B is the cone or deflector. O is the wick-tube. D is a short fixed tube,'secured fast in the web a of the burner, and projecting a little distance above and below the said web. The wicktube slides up and down loosely in this fixed tube, and, when raised, the wick rests just far enough above the end of the fixed tube to produce necessary combustion. If desired, the action may be reversed, the outer tube being made movable and the inner one stationary. The wick is operated in the wicktube by the ordinaryspur-wheel shaft 1). J is a bulb or head, to which the wick-tube is made fast. This bulb carries the spur-wheel,

and has arms 0 c, which move up and down in' the guideways d d of the burner. G is a as shown at f, by means of a screw-joint, so engaged or disengaged. The lower end of the rod passes down through a closed'tube ot'thelamp-body, and through the base of the lamp, where a spring is conis depressed, and the wick April 8,1876.

nected therewith to force it downward, as

shown in my aforesaid patent. When the lamp rests upon a table or other supportingsurtace the rod is thrown up and the spring tube 0 is then moved up in the fixed tube D, so that combustion can take place; but when thelamp is raised from its support, then the wick-tube is forced down within the fixed tube D by reason of the reaction of the spring upon the rod. G. H is the extinguisher. It is a band of metal bent in square or rectangular form. It is secured to the opposite edges of the fixed tube D by pivots h h of the latter, which pass through slots it of the former. These slots the extinguisher with the bulb J.

When the wick-tube is raised in the fixed tube to allow combustion, as before described, then the extinguisher will be thrown down or back, as shown in Fig. 1, so as not to interfere with the blaze; but when the Wick-tube is depressed or thrown down by the action of the spring-rod, then the extinguisher will be brought down over the top of the fixed tube, as shown in Fig. 3, thereby extinguishing the flame and making a close cover to the said fixed tube.

Two special advantages are gained by this arrangement: first, the extinguishing of the blaze is made more certain by the drawing of the wick down into a close space and covering it by a close-fitting cap; and, second, the difficulty of making the cap fit over an undue projection of the wick is avoided. The unequal projection of the wick upward has caused some difficulty in this respect.

I do not claim, broadly, a self-acting lampextinguisher; but 7 1. The combination, with the wick-tube G, sliding loosely in the fixed tube D, of the extinguisher H, attached to the edges of the fixed tube bythe pivots h h, resting in the slots z' i, the whole arranged to operate as and for the purpose specified.

2. The two tubes 0. D, sliding one withinthe PATENT QFFICE. i

other,- and.theextinguishingmap H, pivotedto ,In witness whereof I have hereunto signed the outer tube, in combination wvi,th;asp1:in ,g-- my name in the presence of two subscribing rod, G, connected with the extinguisher, in the Witnesses.

manner and for the purpose specified. 7

3. The combination, with the extingnishen FRED FURNISS' H and i g Wick-t be O, of the mods .ikilei Witnesses: connecting the extinguisher'withthe saidtube,i Emma! VAN AMBURGH, as and for the purpose specified. L. MORGAN. 

